Impact
GET /v1/changes/{realityChangeEventId}/impacts?cursor={cursor}&limit={limit} Given a classified change event, returns the page of registered dependents it's attributed to affect.
Response — ImpactPageV1
A cursor-paginated list of ImpactRecordV1 entries. Impact is computed from a real change event — it is never inferred speculatively without one.
Who gets impact records
Only dependents that registered interest in the affected entity/topic/scope — impact is never fanned out beyond what was explicitly registered.